Labeling Parts of a Circle

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

What is the diameter?

• 8
• 16
• 10
• 4

What is the radius?

• 18
• 72
• 38
• 14

What is the diameter?

• 5 in
• 10 in
• 3.14 in
• 15.84 in

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

The distance from the center of the circle to any point on the circle is called the...

• radius
• diameter
• circumference
• area

The distance all the way across the circle, but through the center, is called the...

• radius
• diameter
• circumference
• area

A diameter is also a chord. 

• True
• False 

A line segment connecting any two points on a circle is called a _____________. 

• diameter
• chord
• radius
• circumference